20530543013224 has 32 divisors (see below), whose sum is σ = 38588706374400. Its totient is φ = 10240234432000.

The previous prime is 20530543013219. The next prime is 20530543013297. The reversal of 20530543013224 is 42231034503502.

It is a self number, because there is not a number n which added to its sum of digits gives 20530543013224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11731224 + ... + 13367224.

It is an arithmetic number, because the mean of its divisors is an integer number (1205897074200).

Almost surely, 2^{20530543013224} is an apocalyptic number.

It is an amenable number.

20530543013224 is a deficient number, since it is larger than the sum of its proper divisors (18058163361176).

20530543013224 is a wasteful number, since it uses less digits than its factorization.

20530543013224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639833 (or 1639829 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 20530543013224 its reverse (42231034503502), we get a palindrome (62761577516726).

The spelling of 20530543013224 in words is "twenty trillion, five hundred thirty billion, five hundred forty-three million, thirteen thousand, two hundred twenty-four".